孙小洁在长沙一家外贸公司工作,为了应对国外公司的工作时间,她必须夜里工作。长沙的冬天,不管穿多少衣服,都感觉冰凉刺骨。夜凉如水,冻得她的手脚无法工作,她只好边捂暖水杯边工作,结果生冻疮了。孙小洁想,江南的省份,如湖北、湖南、浙江、江西、贵州、广西等地的冬天漫长且湿冷,很多人通过烤火来取暖,但烤火容易引发安全隐患,如果有种简便的取暖 Sun Xiaojie work in a foreign trade company in Changsha, in order to deal with working hours of foreign companies, she must work at night. Changsha winter, no matter how much wear clothes, feel cold and biting. The night was cool, her hands and feet were too cold to work, and she had to cover her thermos while working with frostbite. Sun Xiaojie thought that the winter in the provinces of Jiangnan such as Hubei, Hunan, Zhejiang, Jiangxi, Guizhou and Guangxi is long and wet and cold. Many people use the roasted fire to heat their houses. However, roasting fire easily causes safety problems. If there is a kind of simple heating